Low-emittance (Low-E) is a coating that increases a window or door’s ability to diminish heat transfer, thus saving heating and cooling costs. In addition to energy savings, Low-E also effectively reduces the amount of transmitted ultraviolet light which can damage carpets, fabrics, and drapes.
Not all Low-E coatings are the same. There are several manufacturers of Low-E glass that use varying formulas to create their Low-E coatings for different applications. Low-E coatings used on large, commercial building that have huge expanses of windows are completely different than what is used on window glass for a residential home. But, even between residential Low-E glass there can be some differences.
Roomside Low-E is a special non-silver Low-E coating that features a nearly clear and incredibly durable finish. Harvey’s Roomside Low-E glass, produced by Cardinal Glass Industries, provides optimum thermal performance benefits. Many major window manufacturers in the industry have adopted the use of Roomside Low-E to best meet the needs of ENERGY STAR® guidelines.
Here are more facts about Roomside Low-E: